If there is either a .config in /usr/src/linux/ or a config file in /boot/, it seems as though some kernel options are omitted from menuconfig. One of the most obvious examples is in "Processor type ...

Configuration is the first step in building a kernel. There are many ways and various options to choose from. The kernel will generate a .config file at the end of the process and generate a series of ...

root@h2:/usr/src/linux# make menuconfig HOSTCC scripts/fixdep In file included from /usr/include/sys/socket.h:35, from /usr/include/netinet/in.h:24, from scripts ...